* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    box-sizing: border-box;
}

.top {
    width: 100%;
    height: 5px;
    background: -webkit-linear-gradient(left, #6B15A1, #AB29A1);
}

@media (max-width:600px) {
    .center .navbar-brand {
        margin-right: 0px;
    }
    .center-b .row {
        height: 600px;
    }
    .center-c {
        margin-top: -270px;
    }
}

.center {
    margin-top: 30px;
}

.container::after {
    content: "";
    display: table;
    clear: both;
}

.navbar-nav li {
    margin-left: 50px;
}

.bb {
    width: 143px;
    height: 143px;
    background: white;
    border: 1px solid #6B15A1;
    border-radius: 20px;
    margin: auto;
    line-height: 134px;
    text-align: center;
}

.bb p {
    font-weight: 500;
    color: #6B15A1;
    font-size: 100px;
}

.center-a {
    margin-top: 50px;
}

.center-a h1 {
    display: block;
    text-align: center;
    margin-top: 30px;
}

.center-a h6 {
    display: block;
    text-align: center;
    margin-top: 15px;
    color: #999;
}

.cc {
    text-align: center;
    margin-top: 20px;
}

.center-a .cc button {
    background: #6B15A1;
    border: 1px solid #6B15A1;
}

.center-b {
    margin-top: 200px;
    text-align: center;
    margin-bottom: 100px;
}

.center-b img {
    margin-bottom: 20px;
}

.center-b h6 {
    margin-bottom: 20px;
}

center-b p {
    color: #999;
}

.center-c .card a {
    background-color: #6B15A1;
    border: 1px solid #6B15A1;
    margin-bottom: 30px;
}

.center-c .card h6 {
    margin-top: 50px;
}

.center-c .card p {
    color: #999;
    height: 50px;
    overflow: hidden;
}

.center-c {
    text-align: center;
    margin-bottom: 150px;
}

.card-body {
    margin-top: -180px;
    background: white;
    padding-bottom: 50px;
}

.tutu {
    width: 94px;
    height: 94px;
    border: 2px solid white;
    border-radius: 50%;
    position: absolute;
    top: -45px;
    left: 0;
    right: 0;
    margin: auto;
}

.ding {
    position: relative;
}

.center-d {
    margin-top: 100px;
}

.kuang {
    width: 100%;
    height: 100px;
    border: 1px solid #999;
    border-radius: 5px;
}

.kuang {
    border-top: 5px solid #6B15A1;
    position: relative;
}

.kuang p {
    display: inline-block;
    margin-left: 15px;
}

.kuang h6 {
    margin-top: 15px;
    margin-left: 15px;
}

.kuang button {
    position: absolute;
    top: 10px;
    right: 50px;
}

.kuang button {
    background-color: #6B15A1;
    border: 1px solid #6B15A1;
}

@media (max-width:600px) {
    .kuang {
        width: 100%;
        height: 150px;
        position: relative;
    }
    .kuang button {
        position: absolute;
        top: 100px;
        left: 50px;
    }
    .footer a {
        display: block;
    }
}

.footer {
    margin-top: 50px;
    text-align: center;
    margin-bottom: 80px;
}

.footer a {
    display: inline-block;
    color: #6B15A1;
    margin-left: 20px;
    font-size: 14px;
}